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2015 Map of Four Corners Rock

Name: 2015 Topographic Map of Four Corners Rock
Creator: U.S. Geological Survey
Published: 2015
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2015

About this map

Six Rivers National Forest and Mendocino National Forest meet in this high-altitude landscape along the border of Trinity County. The terrain is defined by a series of prominent peaks and geological landmarks, most notably the namesake Four Corners Rock, alongside Washington Rock and Mikes Rock. These features overlook the complex drainage systems of the Mad River and the N Fork Middle Fork Eel River, which carve through the ridges.

Remote water bodies like Antone Lake and Swan Lake are scattered across the higher elevations, providing key points of reference for those tracing land use in the California backcountry. Names like Pfeiffer Flat and Clarks Basin suggest the history of early grazing or resource management, while the presence of Jones Ridge, Horse Ridge, and Shinbone Ridge illustrates the dramatic relief and navigational challenges of this protected wilderness.